Boat form



\ 1,626,509 6. E. CHANCE BOAT FORM April 26, 1927.

Filed June 4 192 3 Sheets-Sheet 1 smut Ckarlesl'. (We.

April 26. 1921.

C. E. CHANCE BOAT. FORM I Filed June 4, 192 3 Sheets-Sheet 2 April 26 1927. 1,626,509

c E. CHANCE BOAT FIORM Filed June 4 1925 3 Sheets-Sheet 3 Patented Apr. 26, 1927.

U EYE D. '5

Parser err-its.-

"oHnRLE's CHANGE, or ANNHPOLIS, MARYLAND.

BOAT

Application filed .Tune 4,

making up aboat frame may be set and bent into the required shape or torsional curvature, following which, they may be then relati-vely braced, whereupon the complete frame may be easily and=quiekly removed from the form'by reason of thefnovel and peculiar construction of one side thereof and theform then properly re-assembledand adjusted for the building of another frame.

Other objects of the inventionvwill be in part obvious and inpart pointed out hereinafter. y i I In order that the invention 'and its mode of operationinay be readily understood by those skilled int-he art, I have intheaccompanying illustrative drawings and in the following detailed description based thereupon, set out one'possible embodiment of the invention.

In these drawings:

Figure 1 is a side elevation of the improved boat frame form,

Figure 2 is an end elevation thereof,

Figure 3 is a vertical transverse section taken on the line 3-3 of Figure 1 looking in the direction in which the arrows point,

Figure 4 is a similar section taken on the line ;4i of Figure 1 looking in the direction in which the arrows point, I

Figure 5 is a fragmentary enlarged detail in horizontal sectiontaken on "the line 5- 5 of Figure 1 looking in the direction in which the arrows point, p v

Figure .6 is an enlarged fragmentary detail in vertical transverse sectiontaken on the line 6" 6 of F 'igure'1lookingin the direction in which i the arrows point,

Figure 7 is asiinila r view in vertical longitudinal section taken on the line of Figure 2 looking in the direction in which the arrows point, V i v FigureS is a 'detail-inJelevatio'nofthe m rk e e? e ey l fer th snare FORM;

1926. Serial No. 113,816.

marking of the upper extremities of the shaped or torsion-ally curved ribs, and A F gure-9 is an enlarged fragmentary deta l in vertical longitudinal section-taken on line" 9'9 of'FigureQ looking in the direction in which the arrows point.

, Having more particular reference .to the drawings in connection with which like characters of referencevwill designatep corresponding parts throughout, the improved form may be stated to comprise bed timbers or'thei-r equivalents, generally designated-by the numeral 1,, said timbers being arranged in equi space'd relation whereby to ,present al'ongitudinally disposed series thereof; each of said "timbersbeing preferably arranged in relative parallelism, and being substantially sqi'rar'ein cross sectionas is clearly il-,

lustrated in the Figure :7 Received upon the upper portions of the bed timbers '1 are pairs of opposed base pieces or timbers 2 and 3, which, as will be noted upon reference to the Figures"? and 9are of less widths tlian"a're -the bedtimber's 1.; certain of these base timbers being secured in positionkvith respect to the'upper orreceiving surfaces of theti'mbers 1 through the medium of securing plates {1 having bolts 5 passed through their opposite end portions into and through adjacent port-ions o'ft he timbers 1, 2 and il, whereupon locking nuts or similar .devices are "engagedtherewith for an obvious purpose. that the inner or adja'centends of the base In this connection, 'it is to be noted- Pieces 2 and 3 received upon h timbers 1 of cross secti'onally L-shaped brackets 8 hav ingji fastening bolts passed through the oppositejportions thereof into engagement with adjacent portion jof such pee-sea and 3 .zid the timber-SE1, In th s Canaan-0a, ir wa be "stood that, rhenaanty or these cross 'secti'o'nally L-shaped securing plates is 110 ma enta-by the factthattheir' respective base pieces 2 arid- 53 are not arranged ad;

gee-n qr fiu r'wia gears f h ide i I the base timbers l as is the case with the majority of such base pieces, the utility of which will be subsequently described.

Because of the fact that the boat frame to be constructed upon my improved form decreases in depth toward the stern portion thereof, it becomes necessary that cradle blocks 9 shall be secured to the inner portions of the upper surfaces of certain of said base pieces 2 and3, as shown in the Figure 3, whereas sub-base pieces 10 and 11 are supported upon the upper portions of those base pieces 2 and 3 adjacent or in proximity tothe stern forming portion of the form, as is shown in the Figure 2.

I Frame side forms or standards are rigidly carried upon the outer portions of certain of the base pieces 2 and 3 and the sub base pieces 10 and 11, such standards being gen erally designated at this time for the purpose of convenience by the numeral 12 and each thereof having their inner surfaces or marginal portions curved as at 13 to conform to the required torsional curvature of the boat ribs constituting the frame; the

lower or basal portions of the standards 12 being curved inwardly with respect to each other, as indicated at 1 1; such surfaces flush-v ly joining'with the substantially flat upper surfaces of the inner portions of their respective or adjacent base pieces 2 and 3, cradles 9 and sub base pieces 10 and. 11, whereby to permit of the proper formation of the bottom of the boat frame. It is preferable in this connection, that the frame side forms or standards 12shall be relatively braced with respect to the particular pieces carrying the same through the medium of diagonally disposed, bracing bars 15 secured to adjacent portions of such standards, base pieces or sub base pieces through the medium of appropriate fastening devices; it being noted in this connection that those portions of the bracing bars 15 adjacent the curved portions 1 1 of said standards 12 are cut away and curved to conform therewith and thus permit of the proper casing of the frame ribs. Likewise, it will be noted upon reference to the Fig: ure 4, that the frame side standards 12 adjacent the bow portion of the form represent, upon their inner or adjacent surface-s, a torsional curvature of different degree and that the lower portions of these particular standards are set in with respect to the adjacent portions of their particular base pieces 2 and 3 and'are secured to such base pieces'through the medium of fastening devicesgenerally indicated at 16, while'diagonally disposed bracing bars 17 are employed toefiect rigid positioning of certain forward or bowshaping standards with respect to their particular base pieces 2 and 3, as is shown in the Figure 1. The lower and inner extremitiesof these particular standards 12,

however, are relatively spaced whereby to i provide for the keel receiving pocket or space 6, aforesaid. The intermediate and rearward or stern frame side standards 12 have vertically disposed pieces 18 secured to the inner and normally spaced ends of their particular base pieces 2-and 3 while the upper portions of said pieces 18 are secured to adjacent portions of either the cradle blocks 9 or the sub base pieces 10 and 11, whereby to further insure the forming of a continuouskeel receiving pocket or space 6.

To effect a further bracing of the intermediate and aft or stern frame side standards '12 with respect to their particular base pieces 2 and 3, diagonally disposedtrusses or'bracing bars '19 may be and preferably are employed, the extremities of such bars being secured to adjacent portions ,of the standards 12 and to the outer side portions of the adjacent pieces 2 and 3 in the manner, shown in the Figures 2 and 3; it being noted 7 in this connection, that those particular standards 12 carried upon the sub base pieces 10 and 11 have their respective bracing bars 19secured as at 20 to the adjacent outer side portions of said sub pieces 10 and 11, thus effecting the relative interconnection and bracing of each thereof. f

.A bow member 21 is arranged upon the upper surface and intermediate portion of the foremost bed timber 1, as is shown in the Figure 1 and in this connection, it is to I be understood that'the basal or lower portion of this how member is directly adjacent and secured to the forward end ofthe keel arrangedin the pocket 6, whereby to effect proper alignment of the boat frame bow with the keel thereof. To effect interconnection of the relatively spaced series of boat frame forms as constituted by the opposed pair of base pieces 2 and 3, the sub base pieces 10 and 11 and the various frame side standards 12, I employ a plurality of longitudinally disposed stringbeing suitably secured to their respective standards12 cradle blocks 9 or base pieces 10 and 11 wherebyto prevent displacement of relative movement therebetween.

thermore, angularly disposed bracingbars 23 are inlerpositioned as ,betweenthe relatively longitudinally spaced form units constituted by the standards 12 and their base or sub base" pieces 2, 3, 10 and 11 and in this way,

it will be understood that such form units will be positively'retained in their respective position and against relative movement so as to at alltimesbe in'relative parallelrelat'ionshi'p. Likewise, it willbe understood that the upper portions of these angularly positioned sides 23 'will sew t brace the adacent portlons of certain of the longitudinally disposed stringers 22.'

From the construction so farexplained, it,

will be understood that'fhave provideda boat frame form consisting of a plurality of arranged as to permit of the "s hapingofa boat frame or skeleton ofthe generally required contour, wherein the bow portion. thereof is 'of greaterv dept-h, the frame de-" creasing in its depth toward and to the stern portion of the same whereat it is gradually broadened in beam as is clearly illustrated in the Figure 2.

In using the improved boat frame form, frame units constituted in the manner hereinbefore described, are properly adjusted with respect to each other and then secured through the plates 4 and 8 to the adjacent portions of their respective bed timbers 1, the boat keel K is laid within the form, particularly, within the keel receiving pocket or space 6, hereinbefore described. This keel K, as will be understood, is of conventional formation and extends for approximately the entire length of the boat frame form, the keel'being properly positioned and centered with respect to the form through the usage of adjusting wedges generally designated by the numeral 26. These wedges, as will be noted, are driven between the opposite side portions of the keel K and the adjacent end portions of the base pieces 2 and 3 and the sub base pieces 10 and 11 in a manner whereby to assure faithful and proper centering or alignment of such keel with the boat frame form. Anynumbers of these wedges 26 may of course be employed for this centering adjustment of the keel K, such as conditions or preference may dictate. Following this, the usual boat frame 01' hull ribs, after having been effectually steamed, are arranged transversely of the stringers 22 constituting the frame form proper. These steamed ribs are flexed so as to lie adjacent to the particular portions of the stringers 22 receiving them, whereupon work clamps such as indicated by the numeral 24 are engaged therewith and with adjacent portions of the stringers 22 as is shown in the Figure 3. In this Way, it will be'untively held-adjacent and "contact with the corresponding portions of the stringers 22' so that-with drying thereof, they will' assume a shape corresponding to-the'finner'surfaces of that general contour atfordedby thearrangementofthe stringers 22 uponthe 1 frame sidesbr standards -12, the cradle blocks 9 and'the' subbase pieces 10. With setting and shaping of the transversely curved frame ribs R, the usual gunwale strips 25 may be arranged within 'tlieu'pper and opposite side portions ofthe ribs R in the. manner shown in the l igure 3,, being securedfthereto in suitable faslii'on, whileifdesired andpractil1erein)f'may be also engaged with; such shaped ribs R wherebyto effect a positive interconn'ectioi'i' of the parts ofthe shaped b-o'atframe with-inthe' form. When thefbdfit f-rameha's set for the re quired period of time, itli'ewvork clamps 24 maybe disengaged from the ribs R and the 30 cable, "carlings'oi deck'beamsl (not shown 1 stringers=-22 whereupon "a gauge bar 27- is arranged upon the upper surfaces of the gunwale strips 25, it being noted in thisconnection, that the said gauge bar 27 is formed of angle metal and. has the opposite extremities of the vertical portion thereof'cut away as is indicated at 28 whereby to flushly engage with the upper surfacesof said gunwale strips 25, the opposite extremities of said gauge bar representing straight edges whereby markings may be made upon the adjacent surfaces and upper extremities of the shaped ribs R, following which such ribs may be trimmed to remove the upper and superfluous extremities thereof, preferably,

flush or substantially flush with theadjacent portions of the upper surfaces of the gunwale strips 25. With trimming of the ribs R, the boat frame is now ready for removal from the form and to. effect such removal, the bolts 5 securing the lower portions of certain of the securing plates 4and 8 to the bed timber 1 are removed, whereupon one complete side of the boat frame form is slid from the base timbers 1, thus exposing the adjacent side of the boat frame and permittingsuch boat frame to be readily slid or similarly removed from the form. /Vith removal of a boat frame from the form, it may be understood that the previously removed side of said form is then replaced andre-secured with respect to the bed timbers 1 whereupon the form is then ready for another frame building operation.

From the foregoing, it'will be understood that I have provided a boat frame 'form which by reason of its novel construction and arrangement of parts, will serve to materially facilitate the construction and likewise, increase the rate of speed at which boat frames or skeletons can be completed, permittmg als because of the manner of build,-

ing or assemb? of the elementarypartsof a Y boat frame, 0

' invention.

I claim: v

A form of the character described comprising a plurality of juxtaposed longitudinally arranged and relatively spaced. bed

timbers, pairs of opposed base pieces received upon said timbers, cradle blocks carried upon theinner portions ofthe upper surfaces of certain of said base pieces, sub

base pieces rigidly supported upon theupper portions of certain others, of said base pieces,

frame side forms carried by each of .said base pieces, the inner surfaces of said forms beingcurved inwardly to conform to the re-.

quire-d traverse curvature of the boat ribs to be received thereby and said curved in ner surfaces joininglwith thecurved inner surfaces of adjacentportions of said cradle blocks and sub base pieces, the inner ends of said base pieces and said sub base pieces being relatively spaced whereby to provide akeel receiving pockettherebetween, bracing means connected to the inner extremities of said sub base pieces and the corresponding portions of their respective base pieces adjacent said keel receivlng space, a plurality of longitudinally disposed transversely, spaced stringers received uponthe inner surfaces of said sideforms, cradle 'blocks'and sub base pieces and fixed Withrespect thereto, means for relatively bracing and inter-,:

connecting the various frame side forms arranged upon the juxtaposed bedtimbers, and means for securing base pieces against rela-. tlve movement upon the r respective bed T timbers atcertain times. 7

In Witness whereof I'have hereunto setimy v oHA'RLEs crimes;

hand. 

